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Rabdophaga Rosariella
''Rabdophaga rosariella'' is a species of gall midge which forms gall Galls (from the Latin , 'oak-apple') or ''cecidia'' (from the Greek , anything gushing out) are a kind of swelling growth on the external tissues of plants, fungi, or animals. Plant galls are abnormal outgrowths of plant tissues, similar to be ...s on sallows (''Salix'' species). It was first described by Jean-Jacques Kieffer in 1897. Description The gall is a small rosette, most often in an axillary bud on sallows. In Britain sallow usually refers to ''S. aurita'', ''S caprea'', ''S. cinerea'' and the hybrids between these species. The rosette leaves are not obviously hairy and the full grown larva does not have a sternal spatula (i.e. a structure on the underside of the thorax of the final (third) instar larva of Cecidomyiidae). Larvae of ''R. rosariella'' are unique as all other known ''Rabdophaga'' larvae have a sternal spatula. Distribution Recorded from Belgium and Great Britain. References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean-Jacques Kieffer
Jean-Jacques Kieffer (1857 in Guinkirchen – 1925 in Bitche) was a French naturalist and entomologist who specialised in the study of parasitic insects. Educated as a priest, Kieffer taught natural science in Bitche, Lorraine while working on the description and classification of insects. His work and publications later became a predominant source of description and classification for entomologists in the early 20th century, in particular with regard to parasitoid wasps, midges, and mosquitos. He collaborated with the English entomologist Peter Cameron. Kieffer received an honorary Doctor honoris causa degree from the University of Strasbourg in 1904. Selected publications *''Monographie des Cécidomyides d’Europe et d’Algérie''. ''Annales de la Société Entomologique de France'' 69: 181–472, pl. 15–44. 1900 *''Synopsis des Zoocécidies d’Europe''. ''Annales de la Société Entomologique de France'' 70: 233–579. 1901 *''Beschreibung neuer Proctotrypiden und Ev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gall
Galls (from the Latin , 'oak-apple') or ''cecidia'' (from the Greek , anything gushing out) are a kind of swelling growth on the external tissues of plants, fungi, or animals. Plant galls are abnormal outgrowths of plant tissues, similar to benign tumors or warts in animals. They can be caused by various parasites, from viruses, fungi and bacteria, to other plants, insects and mites. Plant galls are often highly organized structures so that the cause of the gall can often be determined without the actual agent being identified. This applies particularly to some insect and mite plant galls. The study of plant galls is known as cecidology. In human pathology, a gall is a raised sore on the skin, usually caused by chafing or rubbing. Causes of plant galls Insects and mites Insect galls are the highly distinctive plant structures formed by some herbivorous insects as their own microhabitats. They are plant tissue which is controlled by the insect. Galls act as both the habitat a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Willow
Willows, also called sallows and osiers, from the genus ''Salix'', comprise around 400 speciesMabberley, D.J. 1997. The Plant Book, Cambridge University Press #2: Cambridge. of typically deciduous trees and shrubs, found primarily on moist soils in cold and temperate regions. Most species are known as willow, but some narrow-leaved shrub species are called osier, and some broader-leaved species are referred to as sallow (from Old English ''sealh'', related to the Latin word ''salix'', willow). Some willows (particularly arctic and alpine species) are low-growing or creeping shrubs; for example, the dwarf willow (''Salix herbacea'') rarely exceeds in height, though it spreads widely across the ground. Description Willows all have abundant watery bark sap, which is heavily charged with salicylic acid, soft, usually pliant, tough wood, slender branches, and large, fibrous, often stoloniferous roots. The roots are remarkable for their toughness, size, and tenacity to live ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salix Aurita
''Salix aurita'', the eared willow, is a species of willow distributed over much of Europe, and occasionally cultivated. It is a shrub to 2.5 m in height, distinguished from the similar but slightly larger ''Salix cinerea'' by its reddish petioles and young twigs. It was named for its persistent kidney-shaped stipule In botany, a stipule is an outgrowth typically borne on both sides (sometimes on just one side) of the base of a leafstalk (the petiole). Stipules are considered part of the anatomy of the leaf of a typical flowering plant, although in many speci ...s along the shoots. References External links * * * aurita Plants described in 1753 Taxa named by Carl Linnaeus {{Salicaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salix Caprea
''Salix caprea'', known as goat willow, pussy willow or great sallow, is a common species of willow native to Europe and western and central Asia.Meikle, R. D. (1984). ''Willows and Poplars of Great Britain and Ireland''. BSBI Handbook 4. . Description It is a deciduous shrub or small tree, reaching a height of , rarely to 13 m. The leaves are 3–12 cm long and from 2–8 cm wide, broader than most other willows. The flowers are soft silky, and silvery 3-7-cm-long catkins are produced in early spring before the new leaves appear; the male and female catkins are on different plants (dioecious). The male catkins mature yellow at pollen release, the female catkins mature pale green. The fruit is a small capsule 5–10 mm long containing numerous minute seeds embedded in fine, cottony hairs. The seeds are very small (about 0.2 mm) with the fine hairs aiding dispersal; they require bare soil to germinate.Rushforth, K. (1999). ''Trees of Britain and Europe''. Collins. . The tw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salix Cinerea
''Salix cinerea'' (common sallow, grey sallow, grey willow, grey-leaved sallow, large grey willow, pussy willow, rusty sallow) is a species of willow native to Europe and western Asia.Meikle, R. D. (1984). ''Willows and Poplars of Great Britain and Ireland''. BSBI Handbook No. 4. .Christensen, K. I., & Nielsen, H. (1992). Rust-pil (''Salix cinerea'' subsp. ''oleifolia'') - en overset pil i Danmark og Skandinavien. ''Dansk Dendrologisk Årsskrift'' 10: 5-17. The plant provides a great deal of nectar for pollinators. It was rated in the top 10, with a ranking of second place, for most nectar production (nectar per unit cover per year) in a UK plants survey conducted by the AgriLand project which is supported by the UK Insect Pollinators Initiative. Plant It is a deciduous shrub or small tree growing 4–15 metres (13–50 ft) tall. The leaves are spirally arranged, 2–9 cm (1– in) long and 1–3 cm (– in) broad (exceptionally up to 16 cm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rabdophaga
''Rabdophaga'' is genus of flies in the family of gall midges Cecidomyiidae. There are 105 species distributed through Africa, Asia, Europe and North America. Most species of ''Rabdophaga'' gall willows (''Salix'' sp.); one exception is ''R. giraudiana'' which galls the stems of poplars ( ''Populus'' sp.). Species * '' Rabdophaga absobrina'' ( Felt, 1907) * '' Rabdophaga albipennis'' ( Loew, 1850) * '' Rabdophaga auritae'' * '' Rabdophaga californica'' ( Felt, 1908) * '' Rabdophaga caulicola'' ( Felt, 1909) * '' Rabdophaga cephalanthi'' ( Felt, 1908) * '' Rabdophaga cinerearum'' * '' Rabdophaga clausilia'' (Bremi, 1847) * '' Rabdophaga clavifex'' (Kieffer 1891) * '' Rabdophaga consobrina'' ( Felt, 1907) * '' Rabdophaga degeerii'' ( Bremi, 1847) * '' Rabdophaga deletrix'' (Rübsaamen, 1916) * '' Rabdophaga dubiosa'' (Kieffer, 1913) * '' Rabdophaga essigi'' ( Felt, 1926) * '' Rabdophaga exsiccans'' (Rübsaamen, 1916) * '' Rabdophaga frater'' ( Cockerell, 1890) * '' Rabdophaga gemm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insects Described In 1897
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at between six and ten million; In: potentially over 90% of the animal life forms on Earth are insects. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, which are dominated by another arthropod group, crustaceans, which recent research has indicated insects are nested within. Nearly all insects hatch from eggs. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Jean-Jacques Kieffer
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
